<template>
  <div class="app-container">

    <div class="search-div">
      <el-form label-width="70px" size="small">
        <el-row>
          <el-col :span="8">
            <el-form-item label="关 键 字">
              <el-input style="width: 95%" v-model="searchObj.keyword" placeholder="姓名/地址/所在学校/班级"></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="6">
            <el-form-item label="年龄">
              <el-input style="width: 100px" v-model="preage" placeholder="请输入年龄" :disabled="$hasBP('bnt.sysStu.search')  === false"></el-input>
              <el-divider direction="vertical"></el-divider>
              <el-input style="width: 100px" v-model="endage" placeholder="请输入年龄" :disabled="$hasBP('bnt.sysStu.search')  === false"></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" icon="el-icon-search" size="mini" @click="fetchData()">搜索</el-button>
            <el-button icon="el-icon-refresh" size="mini" @click="resetData">重置</el-button>
          </el-col>
          <el-col :span="4">
              <el-button style="position: absolute;right: 20px"  type="success" icon="el-icon-plus" size="mini" @click="add" :disabled="$hasBP('bnt.sysStu.add')  === false">添 加</el-button>
          </el-col>
        </el-row>
      </el-form>
    </div>

    <!-- 列表 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      stripe
      border
      style="width: 100%;margin-top: 10px;">

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="name" label="姓名" width="110"/>
      <el-table-column prop="age" label="年龄"/>

      <el-table-column prop="school" label="所在学校"/>
      <el-table-column prop="address" label="家庭住址"/>
      <el-table-column prop="gender" label="性别"/>
      <el-table-column prop="sclass" label="班级"/>
      <el-table-column prop="phone" label="家长联系电话"/>
      <el-table-column label="操作" align="center" fixed="right">
        <template slot-scope="scope">
          <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.id)" title="修改" :disabled="$hasBP('bnt.sysStu.update')  === false"/>
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除" :disabled="$hasBP('bnt.sysStu.remove')  === false"/>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页组件 -->
    <el-pagination
      :current-page="page"
      :total="total"
      :page-size="limit"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="fetchData"
    />

    <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%">
      <el-form ref="dataForm" :model="student" label-width="100px" size="small" style="padding-right: 40px;">
        <el-form-item label="姓名" prop="name">
          <el-input v-model="student.name"/>
        </el-form-item>
        <el-form-item label="年龄" prop="age">
          <el-input v-model="student.age"/>
        </el-form-item>
        <el-form-item label="所在学校" prop="school">
          <el-input v-model="student.school"/>
        </el-form-item>
        <el-form-item label="家庭住址" prop="address">
          <el-input v-model="student.address"/>
        </el-form-item>
        <el-form-item label="性别" prop="gender">
          <el-input v-model="student.gender"/>
        </el-form-item>
        <el-form-item label="班级" prop="sclass">
          <el-input v-model="student.sclass"/>
        </el-form-item>
        <el-form-item label="家长联系电话" prop="phone">
          <el-input v-model="student.phone"/>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
        <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  import api from '@/api/system/student'
  export default {
    data() {
      return {
        listLoading: true, // 数据是否正在加载
        list: null, // banner列表
        total: 0, // 数据库中的总记录数
        page: 1, // 默认页码
        limit: 10, // 每页记录数
        searchObj: {}, // 查询表单对象

        dialogVisible: false,
        student: {},
        saveBtnDisabled: false,
        preage: '',
        endage: ''
      }
    },

    // 生命周期函数：内存准备完毕，页面尚未渲染
    created() {
      this.fetchData()
    },

    methods: {
      // 加载banner列表数据
      fetchData(page = 1) {
        this.page = page
        if (this.preage || this.endage) {
          this.searchObj.preage = this.preage
          this.searchObj.endage = this.endage
        }
        api.getPageList(this.page, this.limit, this.searchObj).then(
          response => {
            //this.list = response.data.list
            this.list = response.data.records
            this.total = response.data.total

            // 数据加载并绑定成功
            this.listLoading = false
          }
        )
      },

      // 重置查询表单
      resetData() {
        this.searchObj = {}
        this.preage = ''
        this.endage = ''
        this.fetchData()
      },

      // 根据id删除数据
      removeDataById(id) {
        // debugger
        this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => { // promise
          // 点击确定，远程调用ajax
          return api.removeById(id)
        }).then((response) => {
          this.fetchData(this.page)
          this.$message.success(response.message || '删除成功')
        }).catch(() => {
          this.$message.info('取消删除')
        })
      },

      //弹出添加表单
      add() {
        this.dialogVisible = true
        this.student = {}
      },
      //编辑
      edit(id) {
        this.dialogVisible = true
        api.getstudentById(id).then(response => {
          this.student = response.data
        })
      },

      //添加或更新
      saveOrUpdate() {
        if (!this.student.id) {
          this.save()
        } else {
          this.update()
        }
      },

      //添加
      save() {
        api.savestudent(this.student).then(response => {
          this.$message.success('操作成功')
          this.dialogVisible = false
          this.fetchData(this.page)
        })
      },

      //更新
      update() {
        api.update(this.student).then(response => {
          this.$message.success(response.message || '操作成功')
          this.dialogVisible = false
          this.fetchData(this.page)
        })
      }
    }
  }
</script>
